Class SystemJarFinder
- java.lang.Object
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- nonapi.io.github.classgraph.classpath.SystemJarFinder
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public final class SystemJarFinder extends java.lang.Object
A class to find rt.jar and any JRE "lib/" or "ext/" jars.
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Field Summary
Fields Modifier and Type Field Description private static java.util.Set<java.lang.String>
JRE_LIB_OR_EXT_JARS
The paths of any "lib/" or "ext/" jars found in the JRE.private static java.lang.String
RT_JAR
The path of the first "rt.jar" found.private static java.util.Set<java.lang.String>
RT_JARS
The paths of any "rt.jar" files found in the JRE.
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Constructor Summary
Constructors Modifier Constructor Description private
SystemJarFinder()
Constructor.
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description private static boolean
addJREPath(java.io.File dir)
Add and search a JRE path.static java.util.Set<java.lang.String>
getJreLibOrExtJars()
Get the JRE "lib/" and "ext/" jar paths.static java.lang.String
getJreRtJarPath()
Get the JRE "rt.jar" path.
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Field Detail
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RT_JARS
private static final java.util.Set<java.lang.String> RT_JARS
The paths of any "rt.jar" files found in the JRE.
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RT_JAR
private static final java.lang.String RT_JAR
The path of the first "rt.jar" found.
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JRE_LIB_OR_EXT_JARS
private static final java.util.Set<java.lang.String> JRE_LIB_OR_EXT_JARS
The paths of any "lib/" or "ext/" jars found in the JRE.
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Method Detail
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addJREPath
private static boolean addJREPath(java.io.File dir)
Add and search a JRE path.- Parameters:
dir
- the JRE directory- Returns:
- true if the directory was readable.
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getJreRtJarPath
public static java.lang.String getJreRtJarPath()
Get the JRE "rt.jar" path.- Returns:
- The path of rt.jar (in JDK 7 or 8), or null if it wasn't found (e.g. in JDK 9+).
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getJreLibOrExtJars
public static java.util.Set<java.lang.String> getJreLibOrExtJars()
Get the JRE "lib/" and "ext/" jar paths.- Returns:
- The paths for any jarfiles found in JRE/JDK "lib/" or "ext/" directories.
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