Android编译错误之java.lang.OutOfMemoryError: Java heap space，解决方案

jjj

在编译Android系统时，特别是Android4.0时，比较容易出现如下错误，解决方案如下：
方法一：

1. diff --git a/android4.0/build/tools/releasetools/common.py b/android4.0/build/tools/releasetools/common.py
   
2. index 4957354..aacb18c 100644
   
3. --- a/android4.0/build/tools/releasetools/common.py
   
4. +++ b/android4.0/build/tools/releasetools/common.py
   
5. @@ -355,7 +355,7 @@ def SignFile(input_name, output_name, key, password, align=None,
   
6.    else:
   
7.      sign_name = output_name
   
8. 
   
9. -  cmd = ["java", "-Xmx2048m", "-jar",
   
10. +  cmd = ["java", "-Xmx256m", "-jar",
    
11.             os.path.join(OPTIONS.search_path, "framework", "signapk.jar")]
    
12.    if whole_file:
    
13.      cmd.append("-w")

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如还异常，则尝试方法二：

1. diff --git a/android4.0/build/core/definitions.mk b/android4.0/build/core/definitions.mk
   
2. index 683ae16..3b3d6f9 100644
   
3. --- a/android4.0/build/core/definitions.mk
   
4. +++ b/android4.0/build/core/definitions.mk
   
5. @@ -1525,7 +1525,7 @@ define transform-classes.jar-to-dex
   
6. @echo "target Dex: $(PRIVATE_MODULE)"
   
7. @mkdir -p $(dir $@)
   
8. $(hide) $(DX) \
   
9. -    $(if $(findstring windows,$(HOST_OS)),,-JXms16M -JXmx1536M) \
   
10. +    $(if $(findstring windows,$(HOST_OS)),,-JXms1024M -JXmx2048M) \
    
11.      --dex --output=$@ \
    
12.      $(incremental_dex) \
    
13.      $(if $(NO_OPTIMIZE_DX), \

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