Javac

java.lang.Object
- org.apache.tools.ant.ProjectComponent
- - org.apache.tools.ant.Task
  - - org.apache.tools.ant.taskdefs.MatchingTask
    - - org.apache.tools.ant.taskdefs.Javac

All Implemented Interfaces:

Cloneable, SelectorContainer

Direct Known Subclasses:

Apt
```
public class Javac
extends MatchingTask
```
Compiles Java source files. This task can take the following arguments:
- sourcedir
- destdir
- deprecation
- classpath
- bootclasspath
- extdirs
- optimize
- debug
- encoding
- target
- depend
- verbose
- failonerror
- includeantruntime
- includejavaruntime
- source
- compiler
- release
Of these arguments, the sourcedir and destdir are required.
When this task executes, it will recursively scan the sourcedir and destdir looking for Java source files to compile. This task makes its compile decision based on timestamp.
Since:

Ant 1.1

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`class`	`Javac.ImplementationSpecificArgument` Adds an "compiler" attribute to Commandline$Attribute used to filter command line attributes based on the current implementation.

Field Summary

Fields
Modifier and Type Field and Description

protected File[] compileList

protected boolean failOnError

protected boolean listFiles
- Fields inherited from class org.apache.tools.ant.taskdefs.MatchingTask
  fileset

Fields
Modifier and Type	Field and Description
`protected File[]`	`compileList`
`protected boolean`	`failOnError`
`protected boolean`	`listFiles`

Constructor Summary

Constructors
Constructor and Description

Javac()
Javac task for compilation of Java files.

Constructors
Constructor and Description
`Javac()` Javac task for compilation of Java files.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`add(CompilerAdapter adapter)` Set the compiler adapter explicitly.
`protected void`	`checkParameters()` Check that all required attributes have been set and nothing silly has been entered.
`protected void`	`compile()` Perform the compilation.
`Path`	`createBootclasspath()` Adds a path to the bootclasspath.
`Path`	`createClasspath()` Adds a path to the classpath.
`Javac.ImplementationSpecificArgument`	`createCompilerArg()` Adds an implementation specific command-line argument.
`Path`	`createCompilerClasspath()` The classpath to use when loading the compiler implementation if it is not a built-in one.
`Path`	`createExtdirs()` Adds a path to extdirs.
`Path`	`createModulepath()` Adds a path to the modulepath.
`Path`	`createModulesourcepath()` Adds a path to modulesourcepath.
`Path`	`createSourcepath()` Adds a path to sourcepath.
`Path`	`createSrc()` Adds a path for source compilation.
`Path`	`createUpgrademodulepath()` Adds a path to the upgrademodulepath.
`void`	`execute()` Executes the task.
`Path`	`getBootclasspath()` Gets the bootclasspath that will be used to compile the classes against.
`Path`	`getClasspath()` Gets the classpath to be used for this compilation.
`String`	`getCompiler()` The implementation for this particular task.
`String`	`getCompilerVersion()` The implementation for this particular task.
`String[]`	`getCurrentCompilerArgs()` Get the additional implementation specific command line arguments.
`boolean`	`getDebug()` Gets the debug flag.
`String`	`getDebugLevel()` Get the value of debugLevel.
`boolean`	`getDepend()` Gets the depend flag.
`boolean`	`getDeprecation()` Gets the deprecation flag.
`File`	`getDestdir()` Gets the destination directory into which the java source files should be compiled.
`String`	`getEncoding()` Gets the java source file encoding name.
`String`	`getExecutable()` The value of the executable attribute, if any.
`Path`	`getExtdirs()` Gets the extension directories that will be used during the compilation.
`boolean`	`getFailonerror()` Gets the failonerror flag.
`File[]`	`getFileList()` Gets the list of files to be compiled.
`boolean`	`getIncludeantruntime()` Gets whether or not the ant classpath is to be included in the classpath.
`boolean`	`getIncludejavaruntime()` Gets whether or not the java runtime should be included in this task's classpath.
`String`	`getJavacExecutable()` The name of the javac executable to use in fork-mode.
`boolean`	`getListfiles()` Get the listfiles flag.
`String`	`getMemoryInitialSize()` Gets the memoryInitialSize flag.
`String`	`getMemoryMaximumSize()` Gets the memoryMaximumSize flag.
`Path`	`getModulepath()` Gets the modulepath to be used for this compilation.
`Path`	`getModulesourcepath()` Gets the modulesourcepath to be used for this compilation.
`File`	`getNativeHeaderDir()` Gets the destination directory into which the generated native header files should be placed.
`boolean`	`getNowarn()` Should the -nowarn option be used.
`boolean`	`getOptimize()` Gets the optimize flag.
`String`	`getRelease()` Gets the version to use for the `--release` switch that combines `source`, `target` and setting the bootclasspath.
`String`	`getSource()` Get the value of source.
`Path`	`getSourcepath()` Gets the sourcepath to be used for this compilation.
`Path`	`getSrcdir()` Gets the source dirs to find the source java files.
`protected String`	`getSystemJavac()`
`String`	`getTarget()` Gets the target VM that the classes will be compiled for.
`boolean`	`getTaskSuccess()` Get the result of the javac task (success or failure).
`File`	`getTempdir()` Where Ant should place temporary files.
`Path`	`getUpgrademodulepath()` Gets the upgrademodulepath to be used for this compilation.
`boolean`	`getVerbose()` Gets the verbose flag.
`boolean`	`isForkedJavac()` Is this a forked invocation of JDK's javac?
`boolean`	`isIncludeDestClasses()` Get the value of the includeDestClasses property.
`protected boolean`	`isJdkCompiler(String compilerImpl)` Is the compiler implementation a jdk compiler
`protected Path`	`recreateSrc()` Recreate src.
`protected void`	`resetFileLists()` Clear the list of files to be compiled and copied..
`protected void`	`scanDir(File srcDir, File destDir, String[] files)` Scans the directory looking for source files to be compiled.
`void`	`setBootclasspath(Path bootclasspath)` Sets the bootclasspath that will be used to compile the classes against.
`void`	`setBootClasspathRef(Reference r)` Adds a reference to a classpath defined elsewhere.
`void`	`setClasspath(Path classpath)` Set the classpath to be used for this compilation.
`void`	`setClasspathRef(Reference r)` Adds a reference to a classpath defined elsewhere.
`void`	`setCompiler(String compiler)` Choose the implementation for this particular task.
`void`	`setCreateMissingPackageInfoClass(boolean b)` Whether package-info.class files will be created by Ant matching package-info.java files that have been compiled but didn't create class files themselves.
`void`	`setDebug(boolean debug)` Indicates whether source should be compiled with debug information; defaults to off.
`void`	`setDebugLevel(String v)` Keyword list to be appended to the -g command-line switch.
`void`	`setDepend(boolean depend)` Enables dependency-tracking for compilers that support this (jikes and classic).
`void`	`setDeprecation(boolean deprecation)` Indicates whether source should be compiled with deprecation information; defaults to off.
`void`	`setDestdir(File destDir)` Set the destination directory into which the Java source files should be compiled.
`void`	`setEncoding(String encoding)` Set the Java source file encoding name.
`void`	`setErrorProperty(String errorProperty)` The property to set on compilation failure.
`void`	`setExecutable(String forkExec)` Sets the name of the javac executable.
`void`	`setExtdirs(Path extdirs)` Sets the extension directories that will be used during the compilation.
`void`	`setFailonerror(boolean fail)` Indicates whether the build will continue even if there are compilation errors; defaults to true.
`void`	`setFork(boolean f)` If true, forks the javac compiler.
`void`	`setIncludeantruntime(boolean include)` If true, includes Ant's own classpath in the classpath.
`void`	`setIncludeDestClasses(boolean includeDestClasses)` This property controls whether to include the destination classes directory in the classpath given to the compiler.
`void`	`setIncludejavaruntime(boolean include)` If true, includes the Java runtime libraries in the classpath.
`void`	`setListfiles(boolean list)` If true, list the source files being handed off to the compiler.
`void`	`setMemoryInitialSize(String memoryInitialSize)` The initial size of the memory for the underlying VM if javac is run externally; ignored otherwise.
`void`	`setMemoryMaximumSize(String memoryMaximumSize)` The maximum size of the memory for the underlying VM if javac is run externally; ignored otherwise.
`void`	`setModulepath(Path mp)` Set the modulepath to be used for this compilation.
`void`	`setModulepathRef(Reference r)` Adds a reference to a modulepath defined elsewhere.
`void`	`setModulesourcepath(Path msp)` Set the modulesourcepath to be used for this compilation.
`void`	`setModulesourcepathRef(Reference r)` Adds a reference to a modulesourcepath defined elsewhere.
`void`	`setNativeHeaderDir(File nhDir)` Set the destination directory into which the generated native header files should be placed.
`void`	`setNowarn(boolean flag)` If true, enables the -nowarn option.
`void`	`setOptimize(boolean optimize)` If true, compiles with optimization enabled.
`void`	`setProceed(boolean proceed)`
`void`	`setRelease(String release)` Sets the version to use for the `--release` switch that combines `source`, `target` and setting the bootclasspath.
`void`	`setSource(String v)` Value of the -source command-line switch; will be ignored by all implementations except modern, jikes and gcj (gcj uses -fsource).
`void`	`setSourcepath(Path sourcepath)` Set the sourcepath to be used for this compilation.
`void`	`setSourcepathRef(Reference r)` Adds a reference to a source path defined elsewhere.
`void`	`setSrcdir(Path srcDir)` Set the source directories to find the source Java files.
`void`	`setTarget(String target)` Sets the target VM that the classes will be compiled for.
`void`	`setTempdir(File tmpDir)` Where Ant should place temporary files.
`void`	`setUpdatedProperty(String updatedProperty)` The property to set on compilation success.
`void`	`setUpgrademodulepath(Path ump)` Set the upgrademodulepath to be used for this compilation.
`void`	`setUpgrademodulepathRef(Reference r)` Adds a reference to the upgrademodulepath defined elsewhere.
`void`	`setVerbose(boolean verbose)` If true, asks the compiler for verbose output.

Methods inherited from class org.apache.tools.ant.taskdefs.MatchingTask
add, addAnd, addContains, addContainsRegexp, addCustom, addDate, addDepend, addDepth, addDifferent, addFilename, addMajority, addModified, addNone, addNot, addOr, addPresent, addSelector, addSize, addType, appendSelector, createExclude, createExcludesFile, createInclude, createIncludesFile, createPatternSet, getDirectoryScanner, getImplicitFileSet, getSelectors, hasSelectors, selectorCount, selectorElements, setCaseSensitive, setDefaultexcludes, setExcludes, setExcludesfile, setFollowSymlinks, setIncludes, setIncludesfile, setProject, XsetIgnore, XsetItems

Methods inherited from class org.apache.tools.ant.Task
bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, init, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType

Methods inherited from class org.apache.tools.ant.ProjectComponent
clone, getDescription, getLocation, getProject, setDescription, setLocation

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - compileList
```
protected File[] compileList
```
  - failOnError
```
protected boolean failOnError
```
  - listFiles
```
protected boolean listFiles
```
- Constructor Detail
  - Javac
```
public Javac()
```
    Javac task for compilation of Java files.
- Method Detail
  - add
```
public void add(CompilerAdapter adapter)
```
    Set the compiler adapter explicitly.
    
    Since:
    
    Ant 1.8.0
  - checkParameters
```
protected void checkParameters()
                        throws BuildException
```
    Check that all required attributes have been set and nothing silly has been entered.
    
    Throws:
    
    BuildException - if an error occurs
    
    Since:
    
    Ant 1.5
  - compile
```
protected void compile()
```
    Perform the compilation.
    
    Since:
    
    Ant 1.5
  - createBootclasspath
```
public Path createBootclasspath()
```
    Adds a path to the bootclasspath.
    
    Returns:
    
    a path to be configured
  - createClasspath
```
public Path createClasspath()
```
    Adds a path to the classpath.
    
    Returns:
    
    a class path to be configured
  - createCompilerArg
```
public Javac.ImplementationSpecificArgument createCompilerArg()
```
    Adds an implementation specific command-line argument.
    
    Returns:
    
    a ImplementationSpecificArgument to be configured
  - createCompilerClasspath
```
public Path createCompilerClasspath()
```
    The classpath to use when loading the compiler implementation if it is not a built-in one.
    
    Since:
    
    Ant 1.8.0
  - createExtdirs
```
public Path createExtdirs()
```
    Adds a path to extdirs.
    
    Returns:
    
    a path to be configured
  - createModulepath
```
public Path createModulepath()
```
    Adds a path to the modulepath.
    
    Returns:
    
    a modulepath to be configured
    
    Since:
    
    1.9.7
  - createModulesourcepath
```
public Path createModulesourcepath()
```
    Adds a path to modulesourcepath.
    
    Returns:
    
    a modulesourcepath to be configured
    
    Since:
    
    1.9.7
  - createSourcepath
```
public Path createSourcepath()
```
    Adds a path to sourcepath.
    
    Returns:
    
    a sourcepath to be configured
  - createSrc
```
public Path createSrc()
```
    Adds a path for source compilation.
    
    Returns:
    
    a nested src element.
  - createUpgrademodulepath
```
public Path createUpgrademodulepath()
```
    Adds a path to the upgrademodulepath.
    
    Returns:
    
    an upgrademodulepath to be configured
    
    Since:
    
    1.9.7
  - execute
```
public void execute()
             throws BuildException
```
    Executes the task.
    
    Overrides:
    
    execute in class Task
    
    Throws:
    
    BuildException - if an error occurs
  - getBootclasspath
```
public Path getBootclasspath()
```
    Gets the bootclasspath that will be used to compile the classes against.
    
    Returns:
    
    the boot path
  - getClasspath
```
public Path getClasspath()
```
    Gets the classpath to be used for this compilation.
    
    Returns:
    
    the class path
  - getCompiler
```
public String getCompiler()
```
    The implementation for this particular task.
    Defaults to the build.compiler property but can be overridden via the compiler and fork attributes.
    
    If fork has been set to true, the result will be extJavac and not classic or java1.2 - no matter what the compiler attribute looks like.
    
    Returns:
    
    the compiler.
    
    Since:
    
    Ant 1.5
    
    See Also:
    
    getCompilerVersion()
  - getCompilerVersion
```
public String getCompilerVersion()
```
    The implementation for this particular task.
    Defaults to the build.compiler property but can be overridden via the compiler attribute.
    
    This method does not take the fork attribute into account.
    
    Returns:
    
    the compiler.
    
    Since:
    
    Ant 1.5
    
    See Also:
    
    getCompiler()
  - getCurrentCompilerArgs
```
public String[] getCurrentCompilerArgs()
```
    Get the additional implementation specific command line arguments.
    
    Returns:
    
    array of command line arguments, guaranteed to be non-null.
  - getDebug
```
public boolean getDebug()
```
    Gets the debug flag.
    
    Returns:
    
    the debug flag
  - getDebugLevel
```
public String getDebugLevel()
```
    Get the value of debugLevel.
    
    Returns:
    
    value of debugLevel.
  - getDepend
```
public boolean getDepend()
```
    Gets the depend flag.
    
    Returns:
    
    the depend flag
  - getDeprecation
```
public boolean getDeprecation()
```
    Gets the deprecation flag.
    
    Returns:
    
    the deprecation flag
  - getDestdir
```
public File getDestdir()
```
    Gets the destination directory into which the java source files should be compiled.
    
    Returns:
    
    the destination directory
  - getEncoding
```
public String getEncoding()
```
    Gets the java source file encoding name.
    
    Returns:
    
    the source file encoding name
  - getExecutable
```
public String getExecutable()
```
    The value of the executable attribute, if any.
    
    Returns:
    
    the name of the java executable
    
    Since:
    
    Ant 1.6
  - getExtdirs
```
public Path getExtdirs()
```
    Gets the extension directories that will be used during the compilation.
    
    Returns:
    
    the extension directories as a path
  - getFailonerror
```
public boolean getFailonerror()
```
    Gets the failonerror flag.
    
    Returns:
    
    the failonerror flag
  - getFileList
```
public File[] getFileList()
```
    Gets the list of files to be compiled.
    
    Returns:
    
    the list of files as an array
  - getIncludeantruntime
```
public boolean getIncludeantruntime()
```
    Gets whether or not the ant classpath is to be included in the classpath.
    
    Returns:
    
    whether or not the ant classpath is to be included in the classpath
  - getIncludejavaruntime
```
public boolean getIncludejavaruntime()
```
    Gets whether or not the java runtime should be included in this task's classpath.
    
    Returns:
    
    the includejavaruntime attribute
  - getJavacExecutable
```
public String getJavacExecutable()
```
    The name of the javac executable to use in fork-mode.
    This is either the name specified with the executable attribute or the full path of the javac compiler of the VM Ant is currently running in - guessed by Ant.
    
    You should not invoke this method if you want to get the value of the executable command - use getExecutable for this.
    
    Returns:
    
    the name of the javac executable
  - getListfiles
```
public boolean getListfiles()
```
    Get the listfiles flag.
    
    Returns:
    
    the listfiles flag
  - getMemoryInitialSize
```
public String getMemoryInitialSize()
```
    Gets the memoryInitialSize flag.
    
    Returns:
    
    the memoryInitialSize flag
  - getMemoryMaximumSize
```
public String getMemoryMaximumSize()
```
    Gets the memoryMaximumSize flag.
    
    Returns:
    
    the memoryMaximumSize flag
  - getModulepath
```
public Path getModulepath()
```
    Gets the modulepath to be used for this compilation.
    
    Returns:
    
    the modulepath
    
    Since:
    
    1.9.7
  - getModulesourcepath
```
public Path getModulesourcepath()
```
    Gets the modulesourcepath to be used for this compilation.
    
    Returns:
    
    the modulesourcepath
    
    Since:
    
    1.9.7
  - getNativeHeaderDir
```
public File getNativeHeaderDir()
```
    Gets the destination directory into which the generated native header files should be placed.
    
    Returns:
    
    where to place generated native header files
    
    Since:
    
    Ant 1.9.8
  - getNowarn
```
public boolean getNowarn()
```
    Should the -nowarn option be used.
    
    Returns:
    
    true if the -nowarn option should be used
  - getOptimize
```
public boolean getOptimize()
```
    Gets the optimize flag.
    
    Returns:
    
    the optimize flag
  - getRelease
```
public String getRelease()
```
    Gets the version to use for the --release switch that combines source, target and setting the bootclasspath.
    
    Returns:
    
    the value of the release attribute
    
    Since:
    
    Ant 1.9.8
  - getSource
```
public String getSource()
```
    Get the value of source.
    
    Returns:
    
    value of source.
  - getSourcepath
```
public Path getSourcepath()
```
    Gets the sourcepath to be used for this compilation.
    
    Returns:
    
    the source path
  - getSrcdir
```
public Path getSrcdir()
```
    Gets the source dirs to find the source java files.
    
    Returns:
    
    the source directories as a path
  - getSystemJavac
```
protected String getSystemJavac()
```
    Returns:
    
    the executable name of the java compiler
  - getTarget
```
public String getTarget()
```
    Gets the target VM that the classes will be compiled for.
    
    Returns:
    
    the target VM
  - getTaskSuccess
```
public boolean getTaskSuccess()
```
    Get the result of the javac task (success or failure).
    
    Returns:
    
    true if compilation succeeded, or was not necessary, false if the compilation failed.
  - getTempdir
```
public File getTempdir()
```
    Where Ant should place temporary files.
    
    Returns:
    
    the temporary directory
    
    Since:
    
    Ant 1.6
  - getUpgrademodulepath
```
public Path getUpgrademodulepath()
```
    Gets the upgrademodulepath to be used for this compilation.
    
    Returns:
    
    the upgrademodulepath
    
    Since:
    
    1.9.7
  - getVerbose
```
public boolean getVerbose()
```
    Gets the verbose flag.
    
    Returns:
    
    the verbose flag
  - isForkedJavac
```
public boolean isForkedJavac()
```
    Is this a forked invocation of JDK's javac?
    
    Returns:
    
    true if this is a forked invocation
  - isIncludeDestClasses
```
public boolean isIncludeDestClasses()
```
    Get the value of the includeDestClasses property.
    
    Returns:
    
    the value.
  - isJdkCompiler
```
protected boolean isJdkCompiler(String compilerImpl)
```
    Is the compiler implementation a jdk compiler
    
    Parameters:
    
    compilerImpl - the name of the compiler implementation
    
    Returns:
    
    true if compilerImpl is "modern", "classic", "javac1.1", "javac1.2", "javac1.3", "javac1.4", "javac1.5", "javac1.6", "javac1.7", "javac1.8", "javac1.9" or "javac9".
  - recreateSrc
```
protected Path recreateSrc()
```
    Recreate src.
    
    Returns:
    
    a nested src element.
  - resetFileLists
```
protected void resetFileLists()
```
    Clear the list of files to be compiled and copied..
  - scanDir
```
protected void scanDir(File srcDir,
                       File destDir,
                       String[] files)
```
    Scans the directory looking for source files to be compiled. The results are returned in the class variable compileList
    
    Parameters:
    
    srcDir - The source directory
    
    destDir - The destination directory
    
    files - An array of filenames
  - setBootclasspath
```
public void setBootclasspath(Path bootclasspath)
```
    Sets the bootclasspath that will be used to compile the classes against.
    
    Parameters:
    
    bootclasspath - a path to use as a boot class path (may be more than one)
  - setBootClasspathRef
```
public void setBootClasspathRef(Reference r)
```
    Adds a reference to a classpath defined elsewhere.
    
    Parameters:
    
    r - a reference to a classpath
  - setClasspath
```
public void setClasspath(Path classpath)
```
    Set the classpath to be used for this compilation.
    
    Parameters:
    
    classpath - an Ant Path object containing the compilation classpath.
  - setClasspathRef
```
public void setClasspathRef(Reference r)
```
    Adds a reference to a classpath defined elsewhere.
    
    Parameters:
    
    r - a reference to a classpath
  - setCompiler
```
public void setCompiler(String compiler)
```
    Choose the implementation for this particular task.
    
    Parameters:
    
    compiler - the name of the compiler
    
    Since:
    
    Ant 1.5
  - setCreateMissingPackageInfoClass
```
public void setCreateMissingPackageInfoClass(boolean b)
```
    Whether package-info.class files will be created by Ant matching package-info.java files that have been compiled but didn't create class files themselves.
    
    Since:
    
    Ant 1.8.3
  - setDebug
```
public void setDebug(boolean debug)
```
    Indicates whether source should be compiled with debug information; defaults to off.
    
    Parameters:
    
    debug - if true compile with debug information
  - setDebugLevel
```
public void setDebugLevel(String v)
```
    Keyword list to be appended to the -g command-line switch. This will be ignored by all implementations except modern and classic(ver >= 1.2). Legal values are none or a comma-separated list of the following keywords: lines, vars, and source. If debuglevel is not specified, by default, :none will be appended to -g. If debug is not turned on, this attribute will be ignored.
    
    Parameters:
    
    v - Value to assign to debugLevel.
  - setDepend
```
public void setDepend(boolean depend)
```
    Enables dependency-tracking for compilers that support this (jikes and classic).
    
    Parameters:
    
    depend - if true enable dependency-tracking
  - setDeprecation
```
public void setDeprecation(boolean deprecation)
```
    Indicates whether source should be compiled with deprecation information; defaults to off.
    
    Parameters:
    
    deprecation - if true turn on deprecation information
  - setDestdir
```
public void setDestdir(File destDir)
```
    Set the destination directory into which the Java source files should be compiled.
    
    Parameters:
    
    destDir - the destination director
  - setEncoding
```
public void setEncoding(String encoding)
```
    Set the Java source file encoding name.
    
    Parameters:
    
    encoding - the source file encoding
  - setErrorProperty
```
public void setErrorProperty(String errorProperty)
```
    The property to set on compilation failure. This property will be set if the compilation fails.
    
    Parameters:
    
    errorProperty - the property name to use.
    
    Since:
    
    Ant 1.7.1.
  - setExecutable
```
public void setExecutable(String forkExec)
```
    Sets the name of the javac executable.
    Ignored unless fork is true or extJavac has been specified as the compiler.
    
    Parameters:
    
    forkExec - the name of the executable
  - setExtdirs
```
public void setExtdirs(Path extdirs)
```
    Sets the extension directories that will be used during the compilation.
    
    Parameters:
    
    extdirs - a path
  - setFailonerror
```
public void setFailonerror(boolean fail)
```
    Indicates whether the build will continue even if there are compilation errors; defaults to true.
    
    Parameters:
    
    fail - if true halt the build on failure
  - setFork
```
public void setFork(boolean f)
```
    If true, forks the javac compiler.
    
    Parameters:
    
    f - "true|false|on|off|yes|no"
  - setIncludeantruntime
```
public void setIncludeantruntime(boolean include)
```
    If true, includes Ant's own classpath in the classpath.
    
    Parameters:
    
    include - if true, includes Ant's own classpath in the classpath
  - setIncludeDestClasses
```
public void setIncludeDestClasses(boolean includeDestClasses)
```
    This property controls whether to include the destination classes directory in the classpath given to the compiler. The default value is "true".
    
    Parameters:
    
    includeDestClasses - the value to use.
  - setIncludejavaruntime
```
public void setIncludejavaruntime(boolean include)
```
    If true, includes the Java runtime libraries in the classpath.
    
    Parameters:
    
    include - if true, includes the Java runtime libraries in the classpath
  - setListfiles
```
public void setListfiles(boolean list)
```
    If true, list the source files being handed off to the compiler.
    
    Parameters:
    
    list - if true list the source files
  - setMemoryInitialSize
```
public void setMemoryInitialSize(String memoryInitialSize)
```
    The initial size of the memory for the underlying VM if javac is run externally; ignored otherwise. Defaults to the standard VM memory setting. (Examples: 83886080, 81920k, or 80m)
    
    Parameters:
    
    memoryInitialSize - string to pass to VM
  - setMemoryMaximumSize
```
public void setMemoryMaximumSize(String memoryMaximumSize)
```
    The maximum size of the memory for the underlying VM if javac is run externally; ignored otherwise. Defaults to the standard VM memory setting. (Examples: 83886080, 81920k, or 80m)
    
    Parameters:
    
    memoryMaximumSize - string to pass to VM
  - setModulepath
```
public void setModulepath(Path mp)
```
    Set the modulepath to be used for this compilation.
    
    Parameters:
    
    mp - an Ant Path object containing the modulepath.
    
    Since:
    
    1.9.7
  - setModulepathRef
```
public void setModulepathRef(Reference r)
```
    Adds a reference to a modulepath defined elsewhere.
    
    Parameters:
    
    r - a reference to a modulepath
    
    Since:
    
    1.9.7
  - setModulesourcepath
```
public void setModulesourcepath(Path msp)
```
    Set the modulesourcepath to be used for this compilation.
    
    Parameters:
    
    msp - the modulesourcepath
    
    Since:
    
    1.9.7
  - setModulesourcepathRef
```
public void setModulesourcepathRef(Reference r)
```
    Adds a reference to a modulesourcepath defined elsewhere.
    
    Parameters:
    
    r - a reference to a modulesourcepath
    
    Since:
    
    1.9.7
  - setNativeHeaderDir
```
public void setNativeHeaderDir(File nhDir)
```
    Set the destination directory into which the generated native header files should be placed.
    
    Parameters:
    
    nhDir - where to place generated native header files
    
    Since:
    
    Ant 1.9.8
  - setNowarn
```
public void setNowarn(boolean flag)
```
    If true, enables the -nowarn option.
    
    Parameters:
    
    flag - if true, enable the -nowarn option
  - setOptimize
```
public void setOptimize(boolean optimize)
```
    If true, compiles with optimization enabled.
    
    Parameters:
    
    optimize - if true compile with optimization enabled
  - setProceed
```
public void setProceed(boolean proceed)
```
    Parameters:
    
    proceed - inverse of failoferror
  - setRelease
```
public void setRelease(String release)
```
    Sets the version to use for the --release switch that combines source, target and setting the bootclasspath. Values depend on the compiler, for jdk 9 the valid values are "6", "7", "8", "9".
    
    Parameters:
    
    release - the value of the release attribute
    
    Since:
    
    Ant 1.9.8
  - setSource
```
public void setSource(String v)
```
    Value of the -source command-line switch; will be ignored by all implementations except modern, jikes and gcj (gcj uses -fsource).
    If you use this attribute together with jikes or gcj, you must make sure that your version of jikes supports the -source switch.
    
    Legal values are 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, and 5, 6, 7, 8 and 9 - by default, no -source argument will be used at all.
    
    Parameters:
    
    v - Value to assign to source.
  - setSourcepath
```
public void setSourcepath(Path sourcepath)
```
    Set the sourcepath to be used for this compilation.
    
    Parameters:
    
    sourcepath - the source path
  - setSourcepathRef
```
public void setSourcepathRef(Reference r)
```
    Adds a reference to a source path defined elsewhere.
    
    Parameters:
    
    r - a reference to a source path
  - setSrcdir
```
public void setSrcdir(Path srcDir)
```
    Set the source directories to find the source Java files.
    
    Parameters:
    
    srcDir - the source directories as a path
  - setTarget
```
public void setTarget(String target)
```
    Sets the target VM that the classes will be compiled for. Valid values depend on the compiler, for jdk 1.4 the valid values are "1.1", "1.2", "1.3", "1.4", "1.5", "1.6", "1.7", "1.8", "1.9", "5", "6", "7", "8", "9".
    
    Parameters:
    
    target - the target VM
  - setTempdir
```
public void setTempdir(File tmpDir)
```
    Where Ant should place temporary files.
    
    Parameters:
    
    tmpDir - the temporary directory
    
    Since:
    
    Ant 1.6
  - setUpdatedProperty
```
public void setUpdatedProperty(String updatedProperty)
```
    The property to set on compilation success. This property will not be set if the compilation fails, or if there are no files to compile.
    
    Parameters:
    
    updatedProperty - the property name to use.
    
    Since:
    
    Ant 1.7.1.
  - setUpgrademodulepath
```
public void setUpgrademodulepath(Path ump)
```
    Set the upgrademodulepath to be used for this compilation.
    
    Parameters:
    
    ump - an Ant Path object containing the upgrademodulepath.
    
    Since:
    
    1.9.7
  - setUpgrademodulepathRef
```
public void setUpgrademodulepathRef(Reference r)
```
    Adds a reference to the upgrademodulepath defined elsewhere.
    
    Parameters:
    
    r - a reference to an upgrademodulepath
    
    Since:
    
    1.9.7
  - setVerbose
```
public void setVerbose(boolean verbose)
```
    If true, asks the compiler for verbose output.
    
    Parameters:
    
    verbose - if true, asks the compiler for verbose output

Class Javac

Nested Class Summary

Field Summary

Fields inherited from class org.apache.tools.ant.taskdefs.MatchingTask

Constructor Summary

Method Summary

Methods inherited from class org.apache.tools.ant.taskdefs.MatchingTask

Methods inherited from class org.apache.tools.ant.Task

Methods inherited from class org.apache.tools.ant.ProjectComponent

Methods inherited from class java.lang.Object

Field Detail

compileList

failOnError

listFiles

Constructor Detail

Javac

Method Detail

add

checkParameters

compile

createBootclasspath

createClasspath

createCompilerArg

createCompilerClasspath

createExtdirs

createModulepath

createModulesourcepath

createSourcepath

createSrc

createUpgrademodulepath

execute

getBootclasspath

getClasspath

getCompiler

getCompilerVersion

getCurrentCompilerArgs

getDebug

getDebugLevel

getDepend

getDeprecation

getDestdir

getEncoding

getExecutable

getExtdirs

getFailonerror

getFileList

getIncludeantruntime

getIncludejavaruntime

getJavacExecutable

getListfiles

getMemoryInitialSize

getMemoryMaximumSize

getModulepath

getModulesourcepath

getNativeHeaderDir

getNowarn

getOptimize

getRelease

getSource

getSourcepath

getSrcdir

getSystemJavac

getTarget

getTaskSuccess

getTempdir

getUpgrademodulepath

getVerbose

isForkedJavac

isIncludeDestClasses

isJdkCompiler

recreateSrc

resetFileLists

scanDir

setBootclasspath

setBootClasspathRef

setClasspath

setClasspathRef

setCompiler

setCreateMissingPackageInfoClass

setDebug