Class Pack200Utils
- java.lang.Object
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- org.apache.commons.compress.compressors.pack200.Pack200Utils
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public class Pack200Utils extends Object
Utility methods for Pack200.- Since:
- 1.3
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static void
normalize(File jar)
Normalizes a JAR archive in-place so it can be safely signed and packed.static void
normalize(File from, File to)
Normalizes a JAR archive so it can be safely signed and packed.static void
normalize(File from, File to, Map<String,String> props)
Normalizes a JAR archive so it can be safely signed and packed.static void
normalize(File jar, Map<String,String> props)
Normalizes a JAR archive in-place so it can be safely signed and packed.
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Method Detail
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normalize
public static void normalize(File jar) throws IOException
Normalizes a JAR archive in-place so it can be safely signed and packed.As stated in Pack200.Packer's javadocs applying a Pack200 compression to a JAR archive will in general make its signatures invalid. In order to prepare a JAR for signing it should be "normalized" by packing and unpacking it. This is what this method does.
Note this methods implicitly sets the segment length to -1.
- Parameters:
jar
- the JAR archive to normalize- Throws:
IOException
- if reading or writing fails
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normalize
public static void normalize(File jar, Map<String,String> props) throws IOException
Normalizes a JAR archive in-place so it can be safely signed and packed.As stated in Pack200.Packer's javadocs applying a Pack200 compression to a JAR archive will in general make its signatures invalid. In order to prepare a JAR for signing it should be "normalized" by packing and unpacking it. This is what this method does.
- Parameters:
jar
- the JAR archive to normalizeprops
- properties to set for the pack operation. This method will implicitly set the segment limit to -1.- Throws:
IOException
- if reading or writing fails
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normalize
public static void normalize(File from, File to) throws IOException
Normalizes a JAR archive so it can be safely signed and packed.As stated in Pack200.Packer's javadocs applying a Pack200 compression to a JAR archive will in general make its signatures invalid. In order to prepare a JAR for signing it should be "normalized" by packing and unpacking it. This is what this method does.
This method does not replace the existing archive but creates a new one.
Note this methods implicitly sets the segment length to -1.
- Parameters:
from
- the JAR archive to normalizeto
- the normalized archive- Throws:
IOException
- if reading or writing fails
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normalize
public static void normalize(File from, File to, Map<String,String> props) throws IOException
Normalizes a JAR archive so it can be safely signed and packed.As stated in Pack200.Packer's javadocs applying a Pack200 compression to a JAR archive will in general make its signatures invalid. In order to prepare a JAR for signing it should be "normalized" by packing and unpacking it. This is what this method does.
This method does not replace the existing archive but creates a new one.
- Parameters:
from
- the JAR archive to normalizeto
- the normalized archiveprops
- properties to set for the pack operation. This method will implicitly set the segment limit to -1.- Throws:
IOException
- if reading or writing fails
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