Fix NPE that prevented any package w/o license to be installed.

java.util.Properties#setProperty() doesn't like it when the value is null
which was the case when a package had no license.

Made sure it won't happen on other properties than the license as well.

Also improved error display when an unexpected Throwable is thrown during
install (Stack Call is now display if the Throwable has no message).

BUG:2037085
diff --git a/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/AddonPackage.java b/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/AddonPackage.java
index 4a19206..3c7b8c6 100755
--- a/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/AddonPackage.java
+++ b/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/AddonPackage.java
@@ -126,8 +126,12 @@
         super.saveProperties(props);

 

         mVersion.saveProperties(props);

-        props.setProperty(PROP_NAME, mName);

-        props.setProperty(PROP_VENDOR, mVendor);

+        if (mName != null) {

+            props.setProperty(PROP_NAME, mName);

+        }

+        if (mVendor != null) {

+            props.setProperty(PROP_VENDOR, mVendor);

+        }

     }

 

     /**

diff --git a/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/Package.java b/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/Package.java
index 1fcd6b1..a637fde 100755
--- a/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/Package.java
+++ b/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/Package.java
@@ -145,9 +145,15 @@
      */

     void saveProperties(Properties props) {

         props.setProperty(PROP_REVISION, Integer.toString(mRevision));

-        props.setProperty(PROP_LICENSE, mLicense);

-        props.setProperty(PROP_DESC, mDescription);

-        props.setProperty(PROP_DESC_URL, mDescUrl);

+        if (mLicense != null) {

+            props.setProperty(PROP_LICENSE, mLicense);

+        }

+        if (mDescription != null) {

+            props.setProperty(PROP_DESC, mDescription);

+        }

+        if (mDescUrl != null) {

+            props.setProperty(PROP_DESC_URL, mDescUrl);

+        }

 

         if (mSource != null) {

             props.setProperty(PROP_SOURCE_URL,  mSource.getUrl());

diff --git a/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/PlatformPackage.java b/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/PlatformPackage.java
index 324f51d..c9a58f7 100755
--- a/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/PlatformPackage.java
+++ b/tools/sdkmanager/libs/sdklib/src/com/android/sdklib/internal/repository/PlatformPackage.java
@@ -87,7 +87,9 @@
         super.saveProperties(props);

 

         mVersion.saveProperties(props);

-        props.setProperty(PROP_VERSION, mVersionName);

+        if (mVersionName != null) {

+            props.setProperty(PROP_VERSION, mVersionName);

+        }

     }

 

     /** Returns the version, a string, for platform packages. */

diff --git a/tools/sdkmanager/libs/sdkuilib/src/com/android/sdkuilib/internal/repository/UpdaterData.java b/tools/sdkmanager/libs/sdkuilib/src/com/android/sdkuilib/internal/repository/UpdaterData.java
index 321f5ca..a9e8afa 100755
--- a/tools/sdkmanager/libs/sdkuilib/src/com/android/sdkuilib/internal/repository/UpdaterData.java
+++ b/tools/sdkmanager/libs/sdkuilib/src/com/android/sdkuilib/internal/repository/UpdaterData.java
@@ -36,6 +36,8 @@
 

 import org.eclipse.swt.widgets.Shell;

 

+import java.io.ByteArrayOutputStream;

+import java.io.PrintStream;

 import java.util.ArrayList;

 import java.util.Collection;

 import java.util.HashMap;

@@ -304,8 +306,21 @@
 

                     } catch (Throwable t) {

                         // Display anything unexpected in the monitor.

-                        monitor.setResult("Unexpected Error: %1$s", t.getMessage());

+                        String msg = t.getMessage();

+                        if (msg != null) {

+                            monitor.setResult("Unexpected Error installing '%1%s: %2$s",

+                                    archive.getParentPackage().getShortDescription(), msg);

+                        } else {

+                            // no error info? get the stack call to display it

+                            // At least that'll give us a better bug report.

+                            ByteArrayOutputStream baos = new ByteArrayOutputStream();

+                            t.printStackTrace(new PrintStream(baos));

 

+                            // and display it

+                            monitor.setResult("Unexpected Error installing '%1$s\n%2$s",

+                                    archive.getParentPackage().getShortDescription(),

+                                    baos.toString());

+                        }

                     } finally {

 

                         // Always move the progress bar to the desired position.